Energy and Efficiency Flashcards
1
Q
Work done equation
A
Work done = Force x displacement
2
Q
How much work is done when 1N moves an object through 1M
A
1 Joule
3
Q
Power equation (using work)
A
Power = Work / Time
4
Q
What is work done measure in
A
Joules
5
Q
What is power measured in
A
Watts
6
Q
Power equation (using force)
A
Power = Force x velocity
7
Q
Efficiency equation
A
Efficiency = (useful energy/total energy) x 100
8
Q
How to find efficiency with power
A
(Useful power out / Total power in) x 100
9
Q
How to find efficiency with work
A
(Useful work out / Total work in) x 100
